Wagon and truck dump



' July 24,1928. Re. 17,046

I w. 3;. HANCOCK ET AL WAGON AND TRUCK DUMP Original Filed Feb. 16. 1922 I 3140011 fo'cs w. 61 )[ancoci Z. flcf'z /wlnawold An object of pendently of dump is supported on each Reissued July 24, 1928.

-W1DLIAM GEORGE HANCOCK AND DAKOTA; ASSIGNORS TO AGIC KOTA, A oonrona'rron.

WAGON AND TRUCK DUMP,

LEONARD, GRAIN DUMP COMPANY, or mirror,

- UNITED STATES P EN oFFl-Cfi.

'r; s'rnoMswo'DD, or Mmor, non'rfi NOBTH.DA-

Original no. 1,505,777, dated August s, 1924, Serial a, 53701;), filed February 16, 19 22. Application for v reissue filed May 5, 1925. Serial No. 28,221.

a Our invention relates to improvements in wagon and truck dumps, an it consists in the combinations, constructions, and arrange ments herein described and claimed.

our invention is to provide a wagon and truck dump which is mounted on a weighing scale and wherein means are provided to automaticallylock the vehicle during a dumping operation. i

A, further object of our invent on 1s to provide a} device of the charaoter descr1bed in which the wagon or truck elevating means ,is carriedby thedump, thereby obv ating the chance of slightly lifting the dump lndethe scaleso as" to lessen the ,weightof the truck upon the scales.

A further object of our invention is to provide a device of the character described inl which the elevating platform of the i side thereof, thereby obviating a slight twisting or sagging of oneside wi h respect to the other.

, A further'object of our invention 1 s'to provide a device of the character descrlbed in-wh ch a guard is carried by the elevating portion of the dump, the guard being adapted to close the opening between the raised end of the dump and the platform.

A further object of our invention is to provide a device of the character described which is relatively simple in construction, efficient for the-purposeintended, and WlllCll isnotlikely to easily get out of order.

.Other objects and advantages w ll appear in the following specification, and the novel features of the invention will be particularly pointed out in the appended claims I Our invention is illustrated in theac-companying drawings, forming part of this application, n which the figure is a perspective view of the wagon and truck dump, showing the elevating platform in raised position.

is carried by a weighing device of common construction, such as that shown by the dotted lines in the figure. It is obvious thatthe weighing means forms no part of our invention except in so far as i itcooperateswlth :weight of'the load upon platform 11' by platform 14 are prevented In carrying out our invention, we provide 45 a frame 1 which ried by a lever 4 whichis operativelyconnecte'dto a graduated bar or scale 5. The the frame 1 will move the frame to the supporting pins 6, 7 and 8,whereby the load-maybe. weighed by means of the weights 9 and 10.- A platform 11' covers a portion of the frame 1', and has a grain re ceiving opening 12 therein." The opening 12is provided with an iron grate 13, or the like, so as to prevent objects, other than grain, from passing through the opening 12.

. An elevating platform 14 is secured to'the meansofihinges 15, andis adapted jto normally close the open end 16 of the frame 1. .Azstationary drivewayor supportingv board 17 is disposed adjacent to downwardly" with respect end of the frame 1' whichhas the openmg 16 thereln. When the vehicle is drawn by draft; animals, said animals will] stand upon this driveway or supporting board17 during theweighing operation so that only the wagon and its contents will be weighed. The means. forelevating the platform 14 about the hinges 15 comprises an air cylinder 18 and a piston having a: piston rod19,

the piston being mounted in the cylinder 18. .The cyl nder ,18 is secured to the framel means of supporting members 35. The

y under side of the platform 14 carries a bearing block 20 to which the rod 19 is pivotally secured. An air 'pipe'Ql, connecting with a source of supply (not shown), communica tes with the lower end of the cylinder 18, andis adapted to convey the compressed alr into the cylinder 18 so as to raise the rod 19, which in turn will raise or ele-' vate the platform 14 about thehinges 15.

Ayalve (not shown) controls the passage of alr through the pipe 21- It willbe observed from the. figure that the sides of the from sagging w th respect to each other, since they are supported by racks 22, the racks being dis posed between guide rollers 23 and pinions 24.. The rollers 23 are carried by links 25, which v in turn are carried by a transversely extending shaft 26. The shaft 26 is secured to the frame: 1 by m'eansof bearings 27. From this construction, it will be seen that when the rod 19 is moved, it will elevate the platform"14,"which in turn will move the racks 22 with respect to the shaft v 26. It will be netqh however, that the-sides of the platform 14 are rigidly supported and cannot move with respect to each other, since the racks and piniens positively preventthis "movement. g

The platform 14 is provided with a front wheel locking means for the wagon or truck which is to be dumped. This means com-- rises a wheel. locking board 28 which is ingedly secured to the platform 14' by means of hinges 29 and which forms a portion of the platform 14 when the latter is in closed ornormal position. The board28 I is adapted to be swung about the hinges-29 dicular line 28 about the hinges :board 28 and whic racks 3.0 which are shaft 26, areadapted to rotate with the pinions 24. 'In other words, of'the inions 7 unit when at- The pinion 24 and 31 are rotatedas a form 14 is elevated upwardly.

- 24'is smaller than the pinion 31, so that the rack 30 will he moved upwardly ata greater speed than is the rack 22. The greater movemeat imparted to the rack 30 will-swing the that a wagon is drawnnpon the and the horses are brought to 'board 28 about the hinges .29 so as to nor-' mally keep the board inclinedfrom the vertical at the same angle as the platform 14 is inclined from the vertical, but in an oppositedirectiont In this manner, a, trou h or a V-shaped block is formed by oard '28 and the platform 14, and prevents the wheels of the wagon ortruck from; moving vdownwardly along the platform 14.

.a From the foregoing description of the various parts ofthe device, the operation thereof may be readily Assume grain dump, a stop upon the supporting board 17. [When the horses are supported by the board 17, the front wheels ofthe wagon will be positloned above the board 28. may'now be weighed, it may be tilted so as to remove the gram therefrom, and to convey it through the opening 12. To accomplish the raising The wagon, with its contents,

' the platform 14, air is admitted into the cylinder 18, which will ralse the rod 19, which in turn will elevate the platform 14 upwardly. The shaft 26 and the racks and pmions will automatically keep theboard 28 inclined at the desired angle, whereby the .front wheels of the wagon are prevented from moving downwardly along the platform '14. The front endof the platform 14 secu tothe Th the plane ofthe weighed. After the wagon is platform is in raised raising said platform,

position, and prevents the horses from backing into the opening 16. After the. contents of the wagon have been dumped, the, air may be exhausted from the cylinder 18 whichw-ill lower the platform 14 to its normal position, and willswing the board 28 into a plane parallelwith the plane of the platform 14.. The same operation maybe again, repeated when it is desired to :dump another wagon. In case a truck is desired to be dumped, it is broughtupon the wfilatformsll and 14so that the front'{ eels thereof are disposed above I the platform 28. e same operation is again repeated as heretofore described, and "the truck is securely nhleld from movement, "being dumped, by means ofthe'board28; 5

From the foregoing it will 1 be (starved that we have provideda simple and efiic'ient device for automatically locking the wagon or truck against movement when the latter is being, dumped. If the cylinder18 was mounted upon a support instead of being carried by mitted thereto platform 14 weight of the wagon recorded decrease the the scale.

which woul frame 1, so that would not affectscale. 7 operation, and is not likely t ofo'rderk A v The board 28 inthe drawing, is shown inclined so as to make an acute angle with frame 1. It will therefore be seen that; the front wheels-of the wagon or truck have a tendencyto move toward the the weight recorded on the o easily get out the wagon in place. y We claim 1 1. LA device of they prising aframe having an elevating platform and a guard connected to the free end of said platform,guide rnem bers'ca'rried by the frame 1, air might adso as to sli htly raise the t pe des ribed comh v Y We entirely obviate this chance fiir cheating by merely, securing'the cylinder l8"to the if the nod 19 was raised, it

The device is relatively simple in p free end'of the platform '14 instead of in the opposite direction, thereby securely holding said frame and being adapted to receive and 4 to guide the free end of said guard, Said guard being adapted to extend'between said elevating platform and said frame when said osition. r

2. In a device of frame, an elevating platform means 'for a transversely extending'board hingedly secured tosaid platform t e type-describemfa and constituting a part of said platform, and means actuated by the movement of sald platform for always keeping said board in-1 clined so as to make an angle with a vertical line through the hinge.

3. In a device of the type described, a frame, a -movable platform carried by said frame, means for raising'said platform,,a transversely extending rod rotatably carried by said frame, large and small pinionscarried by said rod, racks pivotally carried by said platform and being in mesh with said small pinions, a board hingedly secured to said platform, and a second set of racks pivotally carried by said board and being in mesh with said larger pinions, whereby said board is kept inclined when the platform is elevated.

4. A wagon truck dump comprising a frame, an elevating platform carried by said frame, a board hinged to said platform and alined with the plane of the platform when the platform is in closed position, means for swinging said board with respect to said platform when said platform is elevated whereby said board acts as a wheel stop for the vehicle disposed on the platform.

5. In combination with a weighing scale, a frame mounted thereon, two platforms carried by the frame, one of said platforms constituting a lifting element, a cylinder supported entirely by the frame, .a piston work- 1ngin the cylinder and operatively connected with the lifting platform, and means for admitting fluid under pressure within the cylinder to move the piston therein in a direction to elevate said lifting platform.

6. In combinationwith a weighingscale, a frame mounted thereon, two platforms supported by the frame, one of said platforms constituting a lifting element, a cylinder supported entirely by the frame, a piston working in the cylinder and o eratively connected with the lifting plat orm, means for admitting fluid under pressure within the cylinder to move the piston therein in a direction to elevate said lifting platform, and means coacting with the movable platform and the frame for supporting said movable platform when raised from the frame.

7. In combination with a weighing scale, a frame mounted thereon, two platforms supported by the frame, oneof said platforms constituting a lifting element, a cylinder su ported entirely by the frame, a piston wor ing in the cylinder and operatively connected with the lifting platform, means for admitting fluid under pressure within the cylinder to move the piston therein in a. direction to elevate said lifting platform, racks depending from the lifting platform, and pinions rotatably carried by the frame and meshing with the. racks, said racks and pinions providing a support forthe movable platform when raised from the frame.

8. In combinationwith a. weighing-scale including two platforms, one of said platforms being movable with respect to the other and upon both of which a vehicle is adapted to be positioned, and pneumatic means suspended clear of the ground below for elevating said movable platform.

9. In combination with a weighing scale including two platforms, one of said platforms being movable with respect to the other and upon both of which a vehicle is adapted to be positioned, and pneumatic means supported by the scale clear of the ground below the movable platform for elevating the movable platform.

10. In combination with a weighing scale including-two platforms, one of said platforms being movable with respect to the other and upon both of which a vehicle is adapted to be positioned, pneumatic means supported by the scale below said movable platform clear of the ground for elevating said movable platform, and locking means carried by one of the platforms and automatically engageable with the vehicle when the movable platform is elevated.

11. In combination with a weighing scale platform and a movable section, a fluid pres- .sure cylinder suspended beneath said platform and a piston for said cylinder con nected with said movable section for raising and lowering it independently of said scale platform.

12. A weighing scale platform having timbers and an opening above said timbers and a section of the platform fitting said opening and adapted to be raised and lowered, a cylinder supported by said timbers and depending within the space beneath the opening in said platform and connected with a source of fluid pressure supply, a piston mounted to slide within said cylinder and having its upper end connected with the underside of said section for raising and lowering it, said section being adapted to support the forward portion of a vehicle that is tilted when said section is raised.

In testimony whereof we hereunto aflix our signatures.

WILLIAM GEORGE HANCOCK. LEONARD T. STROMSWOLD. 

